34.py

#!/usr/bin/env python3
# Sums numbers equal to the sum of the factorials of their decimal digits.

"""Project Euler Problem 34: https://projecteuler.net/problem=34"""


from datetime import date, timedelta


import math

nums = []


def solve():
    """Sum all numbers equal to the sum of the factorials of their digits."""
    x = 10
    ans = 0
    while x < 1000000:
        y = x
        sum = 0
        while y != 0:
            a = y % 10
            y //= 10
            sum += math.factorial(a)
            if sum > x:
                break

        if sum == x:
            nums.append(sum)
            ans += x

        x += 1

    print(ans)


if __name__ == "__main__":
    solve()